This is where the last spurs of the Posavje Hills descend to the lowland of the Krško Plain to the rivers Sava and Krka. Since the Second World War this formerly undeveloped agricultural area has undergone considerable changes. The modernisation of agriculture and the commercial orientation towards specific sectors (livestock, viticulture, etc.) has brought many changes to the traditional way of life and completely altered the appearance of the settlements. This has partly been influenced by the transition of the rural population towards jobs in the industrial sector. Particular progress has been made by Leskovec, which before the Second World War appeared set to eventually become the centre of the present-day municipality of Krško (from 1813 Turn Castle in Leskovec was the seat of imperial administrative and judicial power for a considerably wider area). Archaeological finds confirm that the area was already inhabited in the late Stone Age and there are also rich and widespread finds from the Roman period. The first records of names from this area date from the 14th and 15th centuries. They include: Podlog (1330), Gorica (1330), Leskovec (1336), Drnovo (1343), Senuše (1351), Brege (1358), Velika Vas and Vihre (1436), and Jelše (1445).